Alright, let's work through 7763 times 1763 step by step
7763 × 1763 = 1763 × (7763)
+ 1763 × 3 that equals 5289
+ 1763 × 60 what gives us 105780
+ 1763 × 700 that is equal 1234100
+ 1763 × 7000 which equals 12341000

= 13686169
